I upgraded tanks a few weeks ago went from a 26g to a 40 breeder on my old tank I had my led set around 13” and everything did fine but in the new setup they did fine for a few days now Arnt doing to well. A few mins ago I moved them up to 15” to see if corals will come out. I run blues 100% and white 5-10%
Chinese black box led
- Thread starter Sexytang
- Start date
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Why do you think it is lights that are causing these issues? Since you made a move to a bigger tank, there could be lots of non light related reasons on why you are having issues. Did you transfer rock and sand from old tank into the new? What are your water parameters? where did you place these corals location wise in the new tank, etc....
Flippers4pups
Fins up since 1993
The move may be the root cause of the issues. Agreed.
In times of coral distress, always lower your light intensity a little till you can find the cause.
BrandonS
Well-Known Member
also with a 40 breeder you are going to have substantially less par on the edges and front to back only using one of those lights. I personally used one of the 300 watt vipar spectras over a 40 breeder.
As @Flippers4pups said the move will shake things up. Maybe doing an acclimation by turning light down then up slowly may do it. However without par measurements you can't know for sure if you are getting enough light.
As @Flippers4pups said the move will shake things up. Maybe doing an acclimation by turning light down then up slowly may do it. However without par measurements you can't know for sure if you are getting enough light.
Flippers4pups
Fins up since 1993
The only way to know is a Par meter.
A LUX meter will get you a general idea as well for ~$10 if you can't afford a PAR meter.
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fuelman
2500 Club Member
just to give you a ball park idea with out a par meter. i have a 40b qt tank with a 165w viparspectra at 12" above the water it has a 15x25 frag rack that's 5" tall setting on a bare bottom for my lps. my blue is at 20% & white is at 2% im getting par readings of around 160 in the center down to about 90 at the edges of the rack. with the blue at 100% & white at 10% i was getting about 400 in the center & about 225 on the edges, readings were taken with a seneye.
JimmyV
Active Member
I have 3 165 watt black boxes over my 180 72x24x24. I have them 12 inches above the water. They are set at Blue channel 50 percent ,and white channel at 25 percent. I have a green hammer, a Duncan and a pocillopora..these are growing fantastic.
